The HK8866 Infrared Thermometer is a compact, non-contact temperature measuring device designed for fast and convenient surface temperature inspection. It measures temperatures from -50°C to 600°C (-58°F to 1112°F), allowing users to check hot, moving, difficult-to-reach or potentially hazardous objects from a safer distance.
With a 12:1 distance-to-spot ratio and a response time of approximately 0.1 seconds, the HK8866 delivers quick readings for industrial maintenance, HVAC inspection, automotive diagnostics, food processing, electrical equipment checks and everyday troubleshooting.
The clear backlit display supports easy reading in dim environments. Practical functions including automatic data hold, maximum and minimum temperature display, low-battery indication and automatic power-off make the thermometer simple and efficient to operate.
Highlights
- Wide measuring range: Measures surface temperatures from -50°C to 600°C (-58°F to 1112°F).
- Non-contact operation: Check hot, moving or inaccessible surfaces without direct contact.
- Fast response: Provides temperature readings in approximately 0.1 seconds.
- 12:1 distance-to-spot ratio: Supports accurate targeting while maintaining a practical measuring distance.
- High-resolution readings: Displays temperature changes in 0.1°C or 0.1°F increments.
- Fixed 0.95 emissivity: Suitable for measuring many common non-reflective materials and surfaces.
- Backlit digital display: Makes readings easier to view in poorly lit work areas.
- Maximum and minimum values: Helps users identify temperature variations during inspection.
- Automatic data hold: Keeps the measured value on the screen for convenient recording.
- Energy-saving design: Automatically powers off after approximately 30 seconds of inactivity.
- Low-battery indicator: Alerts the user when the battery needs to be replaced.
- Portable construction: Compact handheld housing suitable for fieldwork and daily use.
Technical Specifications
| Specification | HK8866 |
|---|---|
| Product type | Non-contact infrared thermometer |
| Temperature range | -50°C to 600°C / -58°F to 1112°F |
| Accuracy from -50°C to -20°C | ±3°C |
| Accuracy from -20°C to 0°C | ±2°C |
| Accuracy from 0°C to 600°C | ±(1.5% of reading + 1.5°C) |
| Accuracy from -58°F to -4°F | ±6°F |
| Accuracy from -4°F to 32°F | ±4°F |
| Accuracy from 32°F to 1112°F | ±(1.5% of reading + 3°F) |
| Temperature resolution | 0.1°C / 0.1°F |
| Response time | Approx. 0.1 second |
| Emissivity | Fixed at 0.95 |
| Distance-to-spot ratio | 12:1 |
| Spectral response | 8–14 μm |
| Automatic power-off | Approx. 30 seconds |
| Operating conditions | 0°C to 50°C, 10%–80% RH |
| Storage conditions | -20°C to 65°C, 10%–70% RH |
| Backlight | Yes |
| Automatic data hold | Yes |
| Maximum/minimum display | Yes |
| Low-battery indication | Yes |
| Battery | 1 × 1.5 V AAA battery |
| Display size | 31 × 34 mm |
| Product dimensions | 165 × 47 × 59 mm |
| Product weight | 135 g |
| Carton quantity | 40 pieces |
| Carton dimensions | 53 × 22 × 45 cm |
| Carton net/gross weight | 6.5/7.5 kg |
Applications
Industrial Maintenance
Inspect motors, bearings, machinery, production equipment and other components for unusual temperature changes without stopping operation or touching the surface.
HVAC and Refrigeration
Measure vents, air ducts, radiators, compressors, heating systems and refrigeration equipment during installation, maintenance and fault diagnosis.
Automotive Inspection
Check engines, cooling systems, exhaust components, brakes, tires and air-conditioning systems for overheating or uneven temperature distribution.
Electrical Troubleshooting
Identify abnormal heat on electrical panels, circuit breakers, terminals, connectors and other equipment while maintaining a safer measuring distance.
Food Processing and Storage
Monitor the surface temperature of cooking equipment, packaged food, refrigeration units and storage areas. It should not replace a certified internal food probe where core temperature measurement is required.
Home and Workshop Use
Check ovens, grills, heating appliances, pipes, insulation, workshop equipment and other household or DIY applications.
